In Hindi a differentiation is made between the way that the different persons of the Trinity are addressed by a regular person or by another person of the Trinity. When Jesus addresses God the Father or when God the Father addresses Jesus, a familiar form of address is used, unlike the way that any of them would be addressed with a honorific (pl.) form by anyone else.
Source: C.S. Thoburn in The Bible Translator 1963, p. 180ff.